Plasmonic terahertz lasing in an array of graphene nanocavities

被引：106

作者：

Popov, V. V. ^{[1
,2
]}

Polischuk, O. V. ^{[1
,2
]}

Davoyan, A. R. ^{[1
]}

Ryzhii, V. ^{[3
]}

Otsuji, T. ^{[3
]}

Shur, M. S. ^{[4
]}

机构：

[1] Russian Acad Sci, Kotelnikov Inst Radio Engn & Elect, Saratov Branch, Saratov 410019, Russia

[2] Saratov NG Chernyshevskii State Univ, Saratov 410012, Russia

[3] Tohoku Univ, Elect Commun Res Inst, Sendai, Miyagi 9808577, Japan

[4] Rensselaer Polytech Inst, Dept Elect Comp & Syst Engn, Troy, NY 12180 USA

来源：

PHYSICAL REVIEW B | 2012年 / 86卷 / 19期

基金：

俄罗斯基础研究基金会; 美国国家科学基金会;

关键词：

GATE TRANSISTOR STRUCTURE; TRANSFORMATION; METAMATERIALS; RADIATION;

D O I：

10.1103/PhysRevB.86.195437

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We propose a novel concept of terahertz lasing based on stimulated generation of plasmons in a planar array of graphene resonant micro/nanocavities strongly coupled to terahertz radiation. Due to the strong plasmon confinement and superradiant nature of terahertz emission by the array of plasmonic nanocavities, the amplification of terahertz waves is enhanced by many orders of magnitude at the plasmon resonance frequencies. We show that the lasing regime is ensured by the balance between the plasmon gain and plasmon radiative damping.

引用

页数：6

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